USMLE Prep - Medical Reference Library

Scaphoid Fracture — Imaging & Immobilization

System: Orthopedics • Reviewed: Aug 31, 2025 • Step 1Step 2Step 3

Synopsis:

High suspicion with snuffbox tenderness after FOOSH. Initial radiographs can be negative; immobilize and repeat imaging or obtain MRI. Non‑displaced waist fractures often cast; proximal pole and displaced need surgery.

Key Points

  • Stabilize ABCs; begin targeted evaluation without delaying life-saving therapy.
  • Use system-specific risk tools to guide testing and disposition.
  • Order high-yield tests first; escalate imaging when indicated.
  • Start evidence-based initial therapy and reassess frequently.

Algorithm

  1. Primary survey and vitals; IV access and monitors.
  2. Focused history/physical; identify red flags and likely etiologies.
  3. Order system-appropriate labs and imaging (see Investigations).
  4. Initiate guideline-based empiric therapy (see Pharmacology).
  5. Reassess response; arrange consultation and definitive management.

Clinical Synopsis & Reasoning

For Scaphoid Fracture Imaging Immobilization, frame the differential by acuity and pathophysiology, then align diagnostics to the leading hypotheses. Prioritize stabilization while obtaining high‑yield studies such as CBC (Baseline hematology), BMP (Electrolytes/renal). Incorporate bedside imaging and targeted labs to define severity and identify complications; synthesize results with clinical trajectory to refine the working diagnosis and disposition needs.


Treatment Strategy & Disposition

Initiate disease‑directed therapy alongside supportive care, titrating to objective response. Pharmacologic options commonly include Analgesia/Antipyretics. Use validated frameworks (e.g., Fracture Location & Care) to guide escalation and site of care. Address precipitating factors, de‑escalate empiric therapies with data, and arrange follow‑up for monitoring and risk‑factor modification; admit patients with instability, high risk of deterioration, or needs for close monitoring.


Management Notes

Err on immobilizing with high suspicion to prevent nonunion. Counsel on smoking cessation.


Epidemiology / Risk Factors

  • Risk factors vary by condition and patient profile

Investigations

TestRole / RationaleTypical FindingsNotes
CBCBaseline hematologyAbnormal counts
BMPElectrolytes/renalDerangements

Fracture Location & Care

LocationManagement
Distal poleOften cast, heals well
Waist (non‑displaced)Thumb spica; surgical if displaced
Proximal poleORIF due to AVN risk
NonunionBone graft + fixation
Imaging follow‑upCT for union assessment

Pharmacology

MedicationMechanismOnsetRole in TherapyLimitations
Acetaminophen/NSAIDAnalgesiaHoursPain controlGI/renal risk; pregnancy/lactation considerations

Prognosis / Complications

  • Prognosis depends on severity, comorbidities, and timeliness of care

Patient Education / Counseling

  • Explain red flags and when to seek emergent care.
  • Reinforce medication adherence and follow-up plan.

References

  1. Scaphoid Fracture — Link